Gas-engine.



PATENTED 00T. 29, 1907. 4 R. W. POWELL & C. F. NORTON.

GAS ENGINE. APPLIUATION FILED JAN. a. 1997.

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GAS BN GIN E. APPLIUATION FILED JAN. a, 1901.

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simple construction.

in the construction and combinations of UNITED. srnrns PATENT OFFICE;

ROYSTON W. POWELL AND CHRISTOPHER E. NORTON, OF BROOKLYN,

NEW YORlx',

ASSIGNORS OF ONE-FOURTH TO CHARLES I. MCLAUGHLIN AND ONE-FOURTH TO LUTHER POWELL, OF BROOKLYN, NEW YORK.

GASENGINE.

No. 869,393.l

Specification. of Letters Patent.

Patented oct. a9, 1907.

. Application tiled January 3, 1&07- Serial No. 350.655.

s To all whom it may concern:

` Beit known that wc, Rorsron- W, PownLL'and and useful Improvements in Gas-Engines; and we do hereby declare the following to be a full, clear, and

exact description ofthe invention, such las will enable others skilled in the art to which it apper'tains to make and use the same. f

' Our invention relates to improvements in gas er1-- gines, land the object of our invention is to provide a simple gas engine, having its parts readily accessible, in which the size of the compression chamber may be easily varied, and the whole structure light and of With these objects in view, our invention consists parts as hereinafter' described and. claimed. 'l

In the accompanying drawings-Figure 1 is a side elevation partly insection of our improved gas engine; Fig. 2 is a vertical section thereof; and `Fig. 3 is a cross `section of the same taken on the line 3-3 ol llg. 2 'and looking in the direction of thearrows.

a represents a supporting framework on which is mounted the U-shaped base plate b. Carried' by the base plate b are a plurality of columns c designed to screw into the base plate and to support the engine proper.

d represents a single cylinder in which`both the compression pistons and explosion pistons, which are Surrounding the upper part of the cylinder d is a casing e forming a water jacket for the upper part of the cylinder, where the explosion takes place. The cylinder d is provided near its center with two long slots f through which passes the wrist pin g, which is mounted on the upper ends of connecting rods l1., the lower ends of these rods being mounted in cranks '11, on the shaft j, which shaft is carried in bearings k in vthe bed plate b.

The cylinder d is provided wi'th a discharge pipe m for the burned gases, and an inlet pipe n leading from the lower part'of the cylinder to the upper part thereof. This inlet pipe enters the lower ond of the' cylinder d, andas shown in Fig. lI it extends below the lower end o of this cylinder, so as to afford a free exit for gasolene or other fuel if any should happen to be condensed in the cylinder. lf any of the fuel in a liquid state happens to collect in the lower part of the cylin' der d, the rush of air or gas due to the downward stroke of the piston, will pick up such fluid bodily and carry it up into the explosion end of the cylinder,

probably vaporizing it during its passage.

p represents apipc for the inlet of the gaseous fuel mixed with nir, which leads `from any suitable carbu reting device, and is provided with a check valve t] of anydesired form. I' i f The cylinder is supported on the base plates by means ol" the columns c, which pass through holes in lugs 1, cast integral with the outside of .the cylinder. The columns c are provided with shoulders upon which the lugs r rest, and nuts s are used to hold the cylinder firmly on the columns c.

t represents an inlet pipe for delivering water to the water jacket, and u represents the orifice for-the escapeof the heated water.

A spark plug of any desired construction is shown inserted through the top of the cylinder d at 1', but obviously it could be put through the'side thereof, if desired. f

w represents the piston which operates in both the compression and explosion portions of the cylinder d. This piston is of special construction, designed to produce a very large and at' the same time a very light p iston. It4 is made hollow as shown in Fig. 2, and is provided near its center with inwardly projecting lugs I, through which the wrist pin g passes. By the use of these lugs a long bearing on the wrist pin is secured. The lower end of the piston is enlarged as shown at y to furnish a suitable bearing forfa packing ring z, of any suitable material.D Similarly, the Iupper end of the piston is enlarged as shown'atl', for the reception of packing rings 2. Of course, any number 'of packing rings may be used both at the top and bottom of the piston.

3 represents the'inlct ports orslots for theA compressed charge of carburctcd air leading fromv the pipen into the explosion end of the cylinder, and to prevent the` packing rings from expanding into these slotsl cross' pieces, such as 4 are used.

As said before, the bottom ofthe pistonis open,` but the top is closed by means vof a plate 5 of'the,shape shown in Fig. l. This may either be made integral lWith`the body of the piston, or made separately, and

secured thereto by'any suitable means, such as' brazing. Similarly, in the drawings, the top o the cylinder is shown as made integral with the body thercoi, but this top, may, if desired, be made separate and secured to the body by bolts or'several fastening means.

The plate 5 is a'bafle plate or deiector, and, as shown in Fig. Il, is made with a vertical portion 7,:then a sharply inclined portion 6, and a slowly inclined portion 8, the result of this construction being, that fwhen the charge of carbureted air is forced in through the ports 3, it first strikes the vertical portion f and is forced directly upward, and then by means of the lincline 6 is allowed to spread'out into the upper part ofthe cylinder, thus thoroughly scavenging thecxplosion ond of owing to the wearing or loosening of the parts.

the cylinder, forcing the burned gases out through the pipe m. In the lower part oi the piston w an extension is made forming a ring, as shown at, 9, which is screw threaded on its interior, and into this ring is adapted to screw'a plaie l0, which is provided with Spanner holes 1l. The bottom o of lthe cylinder d and plate l() form i n and the size of this compression chamber may be varied byscrewing the plate l0 up or down in the ring 9. In

the drawings this ring is shown of small width, but obthe plate l0 firmly in the ring 9. Y

it will thus be seen that we have provided an `engine with the crank shafts and connecting rods outsidetlie cylinder, whereby the leakage which often occurs when the crank casing is used as a compression chamber7 is` avoided, such leakage being oi common occurrence Furthermore, we have provided an engine in which both the compression chamber and explosion chamber are made in a single cast cylinder. We have also provided a hollow piston with one end open and the other closed, and having a removable and adjustable plate near one end thereof, the result being that we have an exceedingly light, compact, and strong engine, easy ot` adjustment and repair, and of comparatively small expense lo build. Furthermore, we can obtain any desired degree oi compression in the lower part of the cylinder.

ln the drawings, we have shown the engine as vertically arranged, but of course, it; could be arranged horizontally or at any desired inclination. l

llaving thus described our invent ion, what we claim as new and desire to secure by Letters Patent ot the United States is:

A 1. In a `e'as engine. the combination of supports, a singie cylinder mounted in said supports, said cylinder having one end adapted to act as an explosion chamber and the i 1 l l i other end as a compression chamber, and a single hollow piston mounted in said cylinder, one end of said piston being closed, and a removable and adjustable plate insorted in said piston near its other end, substantially as described.

2. ln a gas engine, the combination of a. supporting i frame, a single cylinder carried by said frame, said cylinf der havin; one end adapted to act as an explosion cham- .with the sides of the cylinder d, acoinpression chamber, i

i l i ber and the other as a compression chamber, and Seid cylinder being provided with centrally arranged slots, a hollow piston mounted in said cylinder, one end of said piston beingclosed, and a. removable and adjustable plate in said piston near its otherend, a wrist pin passing through said slots. said piston being mounted on said wrist pin, a shaft and connections between said shaft and said wrist pin, substantially as described.

3. In a gas engine, the combination of a supporting frame, a single cylinder' carriedtliereby, one end of said' cylinder acting as an explosion chamber, and the other end as a compression chamber, said cylinder being slotted near its center, a single hollow piston mounted in said cylinder having' one end closed and havinga removable and adjustable plate located near its other end; andbeing also provided with lugs at or near its center, a wrist pin passing through said piston lugs through the slots in the cylinder, connectingrods located outside of said cylinder and a cranked shaft to which said rods are connected, substantially as described.

4. In a gas engine, the combination of a single cylinder having one end thereof-adapted to act as an explosion chamber and the other end adapted to act as a compression chamber, and provided with connections between -said chambers,`a1nl ,a single hollow piston mounted in saidv cylinder, said piston being closed at one end and having a vbaille plate on said closed end, and* said piston being' also lprovided with a removable and adjustable plate near its other end. substantially as described.

5. ln a gas engine. the combination o1 n single cylinder, one end oi which acts as an explosion chamber and the other as a compression chamber, a pipe connecting said chambers, said pipe whereit connects the compression chamber bein;` narrowed vertically and extended below the Witnesses Wn. G. Monmsnv. '.lnonAs R. S1mw. 

